Piedmont Weather Forecast
- 56
- 80
Sunny
- 57
- 84
Mostly Sunny
- 55
- 75
Mostly Sunny
- 55
- 77
Mostly Sunny
- 55
- 79
Mostly Sunny
- 55
- 75
Partly Sunny
- 55
- 74
Partly Sunny
Today 16 Sep Inner Portland Metro
Sunny. Highs in the lower 80s. Northeast wind 5 to 10 Mph.
Tonight 16 Sep Inner Portland Metro
Clear. Lows in the mid 50s. North wind 5 to 10 Mph.
Piedmont Temperature Statistics
September Temperature
Portland, Portland International Airport (3.1 miles)
Lowest 8 September, 2026
51.7 °FAverage September
64.3 °FHighest 9 September, 2026
88.6 °F
Climate (2021–2026)
Portland, Portland International Airport (3.1 miles)
Average Low 2021–2026
48.3 °FAverage 2021–2026
56.3 °FAverage High 2021–2026
65.4 °F